Despite the Gunners' Cup record, Alexis is confident he can win bigger titles with his new club.
“I think that Manchester United, since I was young - and I'm not just saying this because I'm here, I'm an honest guy and I never lie - I think it's the biggest club in England. That's what I think," Sanchez told Gunners legend Thierry Henry on Sky Sports.
“There are lots of big clubs, and having played for Arsenal, they are also one of them. It's a huge club and I was there.
“But coming here, looking at the badge, I think United have to win everything because it's such a big club. The club crest says it all.
“I came here to win. I left Arsenal because I wanted to develop and learn as player, and get to experience a new club.
“Manchester United are a huge club on the global stage. I came here to win everything. Otherwise I wouldn't have come here."